// let obj = {name:'xm'};

// let ali = obj;

// obj = null;
// console.log('ali',ali);

function objGroup(obj1,obj2){
    obj1.next = obj2;
    obj2.prev = obj1;
    return {
        o1:obj1,
        o2:obj2
    }
}

let obj = objGroup({name:'obj1'},{name:'obj2'})
console.log('obj',obj);